Winn & Coales (Denso) Ltd. supplies innovative FJC system for offshore pipelay project

In June 2024, a Malaysia-based oil and gas company embarked on an ambitious offshore pipelay campaign aimed at developing three offshore gas fields in Southeast Asia.

The project required the protection of 3,300 field joints on two new sour-rated carbon steel pipelines: an 18 km stretch of Ø10” and a 22 km stretch of Ø12”, both operating at temperatures of 109°. The client’s objective was to find a high-temperature, cold-applied visco-elastic field joint coating system that complied with the international standard ISO 21809-3:2016. After a successful campaign featuring multiple rounds of rigorous testing and client approvals, the project marked the inaugural use of Denso’s Viscotaq™ Offshore Field Joint Coating (OFJC) system.

Exceeding all minimum requirements set by the ISO 21809-3 standard, the Viscotaq OFJC system was selected for its capacity to handle a maximum pipeline service temperature of 125°; enable application of the entire system in under 4 minutes; and achieve an average Shore 45D hardness within 5 minutes. This robust system, manufactured and supplied by Winn & Coales (Denso) Ltd, aided the contractor in finishing three days ahead of schedule and realising savings of over USD 1 million, showcasing the technical capabilities and extraordinary potential of cold-applied FJC systems in the offshore pipelay industry.

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